Run the same cfa within every group and extract fit indices

Usage

groupwiseCFA(
  model,
  data,
  group,
  ...,
  out = NULL,
  what = c("cfi", "rmsea", "chisq", "mod")
)

model: Model in lavaan syntax
data: The data
group: Character. Grouping variable.
...: Other arguments passed to lavaan::cfa
out: Legacy argument, keeps only `fit` or `models` parts of the model.
what: Fit indices to print and return. Possible values are any fit measures returned by `fitmeasures()`, a special value `mod` adds a parameter with the largest modification index and its MI value.